00:01
So here we have some given data like aw is equal to 0 .88 after the pressure angle let's say this is phi and that's equal to cos inverse 0 .94 and this would be equal to 19 .94 degree.
00:25
So for gear ratio of 1 okay we have the condition which is for gear ratio as unity which is equal to 1 only so for this particular condition we have to find out the value of okay of length of the arc of the contact.
00:48
So let's find out so which is t is equal to 2 aw divided by root over of 1 plus 1 upon g multiplied by 1 upon g plus 2 sin square phi minus of 1 okay.
01:10
So from here t value will be equal to 2 multiplied by 0 .88 whole divided by root over of 1 plus 1 upon okay i mean 1 divided by g is there so this would be like 1 multiplied by 1 plus 2 sin square 19 .94 minus of 1 and from here we will get it as 10 .89 which is around 11.
01:44
So now we got the value of the t as equal to 11 and this is what called okay this is what number of teeth in each wheel is 11.
01:55
So we can say number of teeth in each of the wheel is 11.
02:09
So this is the final answer we got over here.
02:11
Now we will go to the second part of the answer and that second part is simply we can say that r is equal to mt divided by 2.
02:23
So mt which is 11 divided by 2 and this would be equal to 5 .5 meters okay...